Tìm x : [ 500 : (x - 10) x 2 ] + 100 = 200
Tìm x : [ 500 : (x - 10) x 2 ] + 100 = 200
Tìm x :
[ 500 : (x - 10) x 2 ] + 100 = 200
=> 500 : ( x - 10 ) x 2 = 200 - 100
=> 500 : ( x - 10 ) x 2 = 100
=> 500 : ( x - 10 ) = 100 : 2
=> 500 : ( x - 10 ) = 50
=> x - 10 = 500 : 50
=> x - 10 = 10
=> x = 10 + 10
=> x = 20
Vậy x= 20
Tìm x :
a) x . x . x = 125
b) ( x + 500 ) = 1000 - 200 .2
c) [( x + 10 ) . 100 ] = 500 + 500 . 10
a) x . x . x = 125
x3 =125
x3 = 53
= > x = 5
b) ( x + 500 ) = 1000 - 200 . 2
x + 500 = 1000 - 400
x + 500 = 600
x = 600 - 500
x = 100
c) [( x + 10 ) . 100 ] = 500 + 500 . 10
( x + 10 ) . 100 = 500 + 5000
( x + 10 ) . 100 = 5500
x + 10 = 5500 : 100
x + 10 = 55
x = 55 - 10
x = 45
b) 200 x 4 = ...... 300 x 2 = ......
200 x 2 = ...... 300 x 3 = ......
400 x 2 = ...... 500 x 1 = ......
100 x 4 = ...... 100 x 3 = ......
b) 200 x 4 = .800..... 300 x 2 = ..600....
200 x 2 = .400..... 300 x 3 = ...900...
400 x 2 = ...800... 500 x 1 = ..500....
100 x 4 = ..400.... 100 x 3 = .300.....
Tìm x :
x + 100 = 500 - 200
Tìm x:
\(x+100=500-200\)
\(x+100=300\)
\(x=300-100\)
\(x=200\)
Vậy \(x=200\)
Tìm x :
x + 100 = 500 - 200
x + 100 = 300
x = 300 - 100
x = 200
Vậy x = 200
K mk nha
Mk k lại
X + 100 - 200 = 500 x 2 + 10
bạn nào trả lời đầu tiên mình tick cho bạn ấy
x+100-200=1010
x+100=1010+200
x+100=1210
x=1210-100
x=1110
X + 100 - 200 = 500 x 2 + 10
X + 100 - 200 = 1010
X + 100 =1010 + 200
X + 100 = 1210
X = 1210-100
X = 1110
ai mik mik lại
các bạn nhớ nhé
\(X+100-200=500\times2+10\)\(0\)
\(X+100-200=1000+10\)
\(X+100-200=1010\)
\(X+100\) \(=1010+200\)
\(X+100\) \(=1210\)
\(X\) \(=1210-100\)
\(X\) \(=1110\)
Tìm x: X * 100 + X* 200 + X * 300 + X * 400 + X * 500 + X * 512 = 2012
X x 100 + X x 200 + X x 300 + X x 400 + X x 500 + X x 512 = 2012
X x (100 + 200 + 300 + 400 + 500 + 512) = 2012
X x 2012 = 2012
X = 2012 : 2012
X = 1
thanks.
X * 100 + X* 200 + X * 300 + X * 400 + X * 500 + X * 512 = 2012
X * (100 + 200 + 300 + 400 + 500 + 512) = 2012
X * 2012 = 2012
X = 2012 : 2012
X = 1
Vậy X bằng 1
X x 100 + X x 200 + X x 300 + X x 400 + X x 500 + X x 512 = 2012
X x ( 100 + 200 + 300 + 400 + 500 + 512 ) = 2012
X x 2012 = 2012
X = 2012 : 2012
X = 1
Tính nhẩm:
Cách làm: 200 x 3 = ?
Nhẩm: 2 trăm x 3 = 6 trăm
Vậy: 200 x 3 = 600
200 x 2 = 300 x 2 =
200 x 4 = 400 x 2 =
100 x 5 = 500 x 1 =
Học sinh nhẩm và ghi kết quả như sau:
200 x 2 = 400
200 x 4 = 800
100 x 5 = 500
300 x 2 =600
400 x 2 =800
500 x 1 =500
200 x 2 = 400 300 x 2 =600
200 x 4 = 800 400 x 2 =800
100 x 5 = 500 500 x 1 =500
x + 100 - 200 = 500 x 2 + 100.
x + 100 - 200 = 500 x 2 + 100
x + 100 - 200 = 1100
x + 100 = 1100 + 200
x + 100 = 1300
x = 1300 - 100
x = 1200 k mk,mk sẽ k lại bn
x+100-200=500x2+100
x+100-200=1000+100
x+100-200=1100
x+100 =1300
x =1200
vậy x=1200.
\(x+100-200=500\times2+100\)
\(x-100=1000+100\)
\(x-100=1100\)
\(x=1100+100\)
\(x=1200\)
500 + x = 100 + 500
300 - x = 300 + 200
400 - x = 200 + 400
500 + x = 100 + 500
500 + x = 600
x = 600 - 500
x = 1001
300 - x = 300 + 200
300 - x = 500
x = 300 - 500
x = -200
400 - x = 200 + 400
400 - x = 600
x = 400 - 600
x = -200
k mk nha mk k l
ại ^_^
500 + 100 = 100 + 500
300 + 200 = 300 + 200
400 + 200 = 200 + 400
500+x=100+500
vay x =100
300-x=300+200
vay x= - 200
400-x=200+400
vay x= -200